Should Microsoft buy BlackBerry?

Speculation has been swirling about who would, or should, acquire BlackBerry in the wake of the company's announcement that it would look for a buyer. Microsoft has been named by quite a few bloggers as a potential buyer for BlackBerry. USATODAY makes a case for why Microsoft should buy BlackBerry in an article entitled, "7 reasons Microsoft should buy BlackBerry."

"The move to acquire Nokia is central to Microsoft's push to control its own hardware production, and to bite into the massive market shares of Apple and Google. Why not pick up BlackBerry for a price substantially lower than that paid for Nokia?"

The price would probably be right, and BlackBerry has a lot of patents, but I don't really see it. If the patent portfolio is worth it then I suppose it makes sense, but Microsoft has already put a lot of money and effort behind its own mobile OS. It really doesn't make sense to me to merge it with BlackBerry at this point. Unless they simply go for the patents I don't see how BlackBerry benefits Microsoft. The user base is loyal to BlackBerry and would likely not appreciate Windows Phone OS. If Microsoft left the BlackBerry OS alone and ran a separate company, that wouldn't make much sense either.